NGC 3313 is a large barred spiral galaxy[2][3] located about 55 megaparsecs (180 million light-years) away in the constellation Hydra.[4] It was discovered by astronomer Ormond Stone in 1886[5][6] and is an outlying member of the Hydra Cluster.[7]

NGC 3313
Pan-STARRS image of NGC 3313
Observation data (J2000 epoch)
Constellation	Hydra
Right ascension	10h 37m 25.4s[1]
Declination	−25° 19′ 10″[1]
Redshift	0.012362[1]
Helio radial velocity	3706 km/s[1]
Distance	55.4 Mpc (181 Mly)[1]
Group or cluster	Hydra Cluster
Apparent magnitude (V)	12.38[1]
Characteristics
Type	(R')SB(rs)ab[1]
Size	~39.04 kpc (127,300 ly) (estimated)[1]
Apparent size (V)	3.9 × 3.2[1]
Other designations
ESO 501-50, AM 1035-250, IRAS 10350-2503, MCG -4-25-44, PGC 31551, UGCA 213[1]

Physical characteristics

NGC 3313 has a complete inner ring feature that is elongated along the bar axis of the galaxy. Inside the inner ring, there are two weak dust lanes in the bar, and surrounding the nucleus there is a very circular nuclear ring. Spiral structure breaking off from the ring region has a complex structure and is tightly wrapped around the ring. The arms trail out into the outer disk where they form a well-defined two-armed pattern. The two-armed pattern also appears to take the form of an R1' outer pseudoring. Beyond this two-armed pattern, there are numerous spiral segments which extend to much larger distances.[3]

See also

• List of NGC objects (3001–4000)
• NGC 1433
• NGC 1097

References

External links

• NGC 3313 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images

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